-LRB- CNN -RRB- -- Even though he was ill , Adam Scott could do little wrong in the early rounds at the Arnold Palmer Invitational .

He led by seven shots at the halfway mark at Bay Hill in Orlando and , despite his advantage being cut entering the final round , still held a comfortable three-shot advantage as play began Sunday .

Unfortunately for the Aussie , he faltered and thus missed a chance to overtake the injured Tiger Woods as the world No. 1 . Matt Every of the U.S. was the unlikely winner , compiling a strong round to claim his first PGA title .

Scott shot a four-over 76 , hitting five bogeys , to slip to third , two shots behind Every 's total of 275 .

It was n't the tournament he wanted ahead of the defense of his Masters crown next month .

`` I did n't putt well at all today , '' Scott told the Golf Channel .

`` If nothing else it 's a good reminder on how much putting practice I need to do before going to the Masters and just how important it is .

`` If I think back to last year , I made every putt that you expect to in that last round and ultimately that 's what gave me the chance to win . ''

Every , who trailed Scott by four shots overnight , made up ground thanks to five birdies . But two bogeys on the last three holes gave Keegan Bradley an opportunity to force a playoff .

Bradley , however , missed a birdie putt at the 18th that would have forced the playoff .

Every 's drought was over .

`` It 's really cool , '' Every , who turned pro in 2006 , told reporters . `` I have had a lot of looks -LRB- at wins -RRB- and I kept telling myself maybe it 's going to come somewhere special . I still ca n't believe I won .

`` It 's hard , it 's tough man . You just never know if it 's going to happen . ''

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Matt Every wins his first PGA title after rallying at the Arnold Palmer Invitational

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Every trailed by four shots heading into Sunday but passed Adam Scott

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Scott slipped to third at Bay Hill and finishes two shots behind the U.S. 's Every

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Scott misses a chance to overtake Tiger Woods as golf 's world No. 1